Re: Air conditioner problem

John H. wrote:
On Sat, 19 Jul 2008 20:02:57 -0400, Matt Colie <matt.colie@xxxxxxxxx>
wrote:

John H. wrote:
Yesterday we fired up the air conditioner on our new TT. The AC is a
Dometic, Brisk Air, 13,500 btu. The TT is plugged into a 20 amp
socket in the garage.

The AC ran fine for about 10 minutes and then tripped the circuit
breaker in the trailer. After a couple minutes I could reset the
circuit breaker, and then tried it again. It did the same thing. We
went through this cycle about four times.

And then, about the fifth time, the thing ran fine - for several hours
until turned off that evening.

Any ideas? I haven't had a chance to call the dealer yet, and the
service section isn't open on the weekends.

TIA!
John H.

Try a Real Heavy Duty (like 12AWG) extension cord before you get to very much farther.
WARNING - Story Follows...

This is a common problem with the window units we sold. When it occurs, the next thing you ask is "Is your new unit on a dedicated circuit?"
Typical answer...
"Well it's the only thing plugged into that outlet."
me - "How close is that outlet to the window?"
"Real close" - Right!
me - "Is it less than 3 feet?" The cords were all about 4-1/2'.
"Not quite" - Right Again!!
me - "Did you buy the Real heavy duty extension cord we offered?"
"No we have enough extension cords." Yeah - Right!
me - "If that extension cord less than 5feet long does not say 14AWG on it, or is less than 12feet long and does not say 12AWG on it somewhere, then (yes, I will repeat that) locate one that does. If the problem persists, we will be glad send a service man to your home. If an undersize extension cord or service is the problem, you will be charged for the service call as that is not a warranty issue.
(It's been a few years (decades), but that is pretty close.)
I do recall one calling back for service. That was a defective unit (bad starting cap), we gave him a new unit.

The problem is that a 15amp circuit will usually start a 12k+BTU unit, but once the are running pressures established, the starting load gets enough higher that the line voltage sag from the hard start makes the unit draw too much power for too long and the breaker trips.

BTDT

Matt Colie

I'm using that big cord that came with the trailer. Supposed to be able to
handle 30 amps. The AC has been working fine since shortly after I posted
the message.

Thanks for the reply though!

This can be an amazing place. You can fix a problem by simply posting it and forgetting it.

--
bill
Theory don't mean squat if it don't work.
.

Relevant Pages

  • Re: Air conditioner problem
    ... The TT is plugged into a 20 amp ... The AC ran fine for about 10 minutes and then tripped the circuit ... Try a Real Heavy Duty extension cord before you get to very ...
    (rec.outdoors.rv-travel)
  • Re: Air conditioner problem
    ... The TT is plugged into a 20 amp ... The AC ran fine for about 10 minutes and then tripped the circuit ... Try a Real Heavy Duty extension cord before you get to very ...
    (rec.outdoors.rv-travel)
  • Re: Some Notes on Gary =?iso-8859-1?Q?Pimm=92s?= Phono Preamp
    ... Follower as the input amp. ... The 47 K input resistor forms part of the playback correction curve in ... this case an actual circuit needs to be posted as proof. ... So then what is your explanation for the rectifiers used in this phono preamp? ...
    (rec.audio.tubes)
  • Re: Brook sliding bias operation.
    ... Zeners would be simpler, but more difficult to ... In your circuit, if adjusting is required, it takes changing only two 10ohm ... Thus the bias clipping will become "harder". ... and 0V sends an error signal off to an SCR, and amp meltdown is avoided. ...
    (rec.audio.tubes)
  • Re: Use of Extension Cord
    ... >> floor lamp burning a 100 watt light bulb I certainly wouldn't need, ... >> 15 amp breaker in the service panel would be perfectly fine for my ... Neither of those is to the point, which is that an extension cord ... with a 13 amp fuse in it is very nearly the same as an outlet with a ...
    (sci.electronics.basics)